(1)______键是清屏键. (2)ON/OFF是______键. (3)用计
题型:填空题
问题:
(1)______键是清屏键.
(2)ON/OFF是______键.
(3)用计算器计算386+450时,开机后要先依次按______键,再按______键,接着依次按______键,最后按______键.
(1)______键是清屏键.
(2)ON/OFF是______键.
(3)用计算器计算386+450时,开机后要先依次按______键,再按______键,接着依次按______键,最后按______键.